High-precision laser range finder for engineering measurement

Abstract

The utility model discloses a laser range finder for high-precision engineering surveying, which belongs to the field of laser range finders and comprises a laser range finder main body, an adjusting mechanism is mounted on the lower surface of the laser range finder main body, and a cleaning protection mechanism is mounted on the surface of the laser range finder main body. The cleaning protection mechanism comprises a protection shell connected to the surface of the laser range finder body in a sleeving mode, one side of the protection shell is fixedly connected with a limiting rod, and the surface of the limiting rod is slidably connected with a protection cover in a sleeving mode. Through cooperative use of the devices, when the laser range finder is used, a protective cover is pulled, so that a linkage toothed plate drives a driving gear to rotate, the driving toothed plate drives a cleaning rod to move on a display screen of the laser range finder main body to clean the display screen, and the laser range finder main body can clean the display screen after measurement. A worker can observe data on the display screen more conveniently, and the worker does not need to clean dust manually.

Description

Technical Field

[0001] This utility model relates to the field of laser rangefinder technology, specifically a high-precision laser rangefinder for engineering surveying. Background Technology

[0002] A laser rangefinder is an instrument that measures the distance to a target by modulating a laser beam with a specific parameter. Based on the ranging method, they are divided into phase-based rangefinders and pulse-based rangefinders. A pulse-based laser rangefinder emits a single or a series of short pulsed laser beams towards the target. A photoelectric element receives the reflected laser beam, and a timer measures the time from emission to reception to calculate the distance from the observer to the target. A phase-based laser rangefinder, on the other hand, detects the distance by measuring the phase difference between the emitted and reflected light as they propagate through space.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN219657873U) discloses a laser rangefinder, comprising a main body and an adjustment device mounted on the lower surface of the main body. This adjustment device adjusts the horizontal placement of the main body. The laser rangefinder, by using an adjustment device mounted below the main body, utilizes a first adjustment group and a second adjustment group within the device to adjust the main body from two different directions. Specifically, turning an adjustment ring rotates a worm gear, which in turn drives a rotating shaft via a worm wheel. The rotating shafts in the first and second adjustment groups act on the main body and the adjustment plate, respectively, thereby adjusting the main body in two vertical directions. Real-time observation is achieved using a level. The structure is simple and easy to operate, making it convenient for adjusting the laser rangefinder to a horizontal position.

[0004] Although the aforementioned patent, through the installation of adjustment devices and other structural features, utilizes the first and second adjustment groups within the adjustment device to adjust the main body of the laser rangefinder from two different directions, and uses a level for real-time observation, its simple structure and ease of operation make it easy to adjust the laser rangefinder to a horizontal position. However, since laser rangefinders used in engineering surveying are mostly used outdoors, dust may accumulate on the surface of the display screen. After repeated use, the dust may affect the operator's ability to view the data on the display screen, requiring manual cleaning. This makes the use of laser rangefinders for engineering surveying somewhat inconvenient.

[0005] Therefore, this utility model provides a high-precision laser rangefinder for engineering surveying to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a high-precision laser rangefinder for engineering surveying, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a high-precision laser rangefinder for engineering measurement, comprising a laser rangefinder body, an adjustment mechanism installed on the lower surface of the laser rangefinder body, and a cleaning and protection mechanism installed on the surface of the laser rangefinder body;

[0010] The cleaning and protection mechanism includes a protective housing fitted onto the surface of the laser rangefinder body. A limiting rod is fixedly connected to one side of the protective housing. A protective cover is slidably fitted onto the surface of the limiting rod. A linkage toothed plate is fixedly connected to one side of the lower surface of the protective cover. A drive gear meshes with the surface of the linkage toothed plate. The drive gear is rotatably connected to the protective housing via a rotating shaft. A drive toothed plate meshes with the surface of the drive gear. A cleaning rod is fixedly connected to the surface of the drive toothed plate. A guide plate is slidably fitted onto the surface of the cleaning rod. The guide plate is fixedly connected inside the protective housing.

[0011] As a preferred technical solution of this application, the cleaning and protection mechanism further includes a protective plate fixedly connected to the lower surface of the guide plate, the protective plate corresponding to the main body of the laser rangefinder, and the cleaning rod abutting against the display screen on the surface of the main body of the laser rangefinder.

[0012] As a preferred technical solution of this application, the adjustment mechanism includes a connecting block rotatably connected to the lower surface of the laser rangefinder body via a rotating shaft. A movable plate is fixedly connected to the surface of the connecting block, and a retaining spring is fixedly connected to the lower surface of the movable plate in a rectangular array. The retaining spring is fixedly connected to the inner bottom wall of the protective shell.

[0013] As a preferred technical solution of this application, the adjustment mechanism further includes an adjustment block rotatably connected to one side of the laser rangefinder body via a pin shaft. The adjustment block is internally threaded with an adjustment screw, and the adjustment screw is rotatably connected to the moving plate via a bearing seat.

[0014] As a preferred technical solution of this application, a magnet is fixedly connected to the lower surface of the protective cover, the magnet corresponds to the protective shell, and a level is provided on one side of the upper surface of the laser rangefinder body.

[0015] As a preferred technical solution of this application, the main body of the laser rangefinder is slidably connected to the inside of the protective housing, the surface of the protective cover is provided with an observation window, the protective cover corresponds to the protective housing, and the movable plate is slidably connected to the inside of the protective housing.

[0016] (III) Beneficial Effects

[0017] By coordinating the cleaning and protective mechanisms, the laser rangefinder is protected when not in use. The protective cover and shell work together to safeguard the rangefinder, making it safer when not in use. When the rangefinder is in use, pulling the protective cover causes the linkage gear plate to rotate, which in turn moves the cleaning rod across the display screen to clean it. This makes it easier for staff to observe the data on the display screen after measurement, eliminating the need for manual dust cleaning and making the laser rangefinder more convenient to use for engineering surveying.

[0018] Through the coordinated operation of the adjustment mechanism and other structures, after the protective cover is removed, the elastic force of the retaining spring causes the moving plate to move the main body of the laser rangefinder. This not only removes the laser rangefinder from the protective housing but also removes the protective plate from protecting one side of the laser rangefinder main body. According to the level setting, rotating the adjusting screw causes the adjusting block to rotate the main body of the laser rangefinder, keeping the main body of the laser rangefinder level during use. This makes the data measured by the laser rangefinder more accurate, thus achieving the high-precision effect of a laser rangefinder for engineering surveying. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a high-precision laser rangefinder for engineering surveying.

[0020] Figure 2 This is a schematic diagram of the protective cover and the main body of a high-precision laser rangefinder for engineering surveying.

[0021] Figure 3 This is a schematic diagram of the second form of a high-precision laser rangefinder for engineering surveying.

[0022] Figure 4 This is a schematic diagram of the cleaning and protection mechanism in a high-precision laser rangefinder for engineering surveying.

[0023] Figure 5 This is a schematic diagram of the adjustment mechanism in a high-precision laser rangefinder for engineering surveying.

[0024] In the picture:

[0025] 1. Laser rangefinder body; 2. Protective housing; 3. Limiting rod; 4. Protective cover; 5. Linkage gear plate; 6. Drive gear; 7. Drive gear plate; 8. Cleaning rod; 9. Guide plate; 10. Protective plate; 11. Magnet block; 12. Connecting block; 13. Moving plate; 14. Clamping spring; 15. Adjusting block; 16. Adjusting screw; 17. Level. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides a high-precision laser rangefinder for engineering surveying, such as... Figures 1-5 As shown, the high-precision laser rangefinder for engineering measurement includes a laser rangefinder body 1. An adjustment mechanism is installed on the lower surface of the laser rangefinder body 1, and a cleaning and protection mechanism is installed on the surface of the laser rangefinder body 1. The cleaning and protection mechanism includes a protective shell 2 that is sleeved on the surface of the laser rangefinder body 1. The laser rangefinder body 1 is slidably connected to the inside of the protective shell 2. A limit rod 3 is fixedly connected to one side of the protective shell 2. A protective cover 4 is slidably sleeved on the surface of the limit rod 3. By setting the limit rod 3, the protective cover 4 can slide and rotate on the limit rod 3, so as to prevent the protective cover 4 from being lost when it slides out of the protective shell 2.

[0028] The protective cover 4 has an observation window on its surface. The protective cover 4 is slidably connected to the protective housing 2. The protective cover 4 and the protective housing 2 are corresponding to each other. A magnet 11 is fixedly connected to the lower surface of the protective cover 4. The magnet 11 is corresponding to the protective housing 2. The magnetic force of the magnet 11 is greater than the elastic force of the clamping spring 14. By setting the magnet 11, when the protective cover 4 seals the protective housing 2, the magnet 11 and the protective housing 2 are magnetically attracted, thereby making the protective cover 4 more stable during use.

[0029] A linkage toothed plate 5 is fixedly connected to one side of the lower surface of the protective cover 4. A drive gear 6 meshes with the surface of the linkage toothed plate 5. The drive gear 6 is rotatably connected to the protective housing 2 via a rotating shaft. A drive toothed plate 7 meshes with the surface of the drive gear 6. The drive toothed plate 7 is slidably connected inside the protective housing 2. Two drive toothed plates 7 are respectively set on both sides of the laser rangefinder body 1. The distance between the two drive toothed plates 7 is greater than the width of the laser rangefinder body 1 to avoid the drive toothed plates 7 obstructing the movement of the laser rangefinder body 1. The drive gear 6 is rotatably connected to the inner wall of the corresponding protective housing 2 via a rotating shaft. A cleaning rod 8 is fixedly connected to the surface of the laser rangefinder body 1. The cleaning rod 8 is in contact with the display screen on the surface of the laser rangefinder body 1. A guide plate 9 is slidably sleeved on the surface of the cleaning rod 8. The guide plate 9 makes the sliding of the cleaning rod 8 more stable. When the laser rangefinder body 1 is in use, the protective cover 4 is slid so that it slides on the upper surface of the protective shell 2, which drives the linkage tooth plate 5 to move, thereby causing the drive gear 6 to rotate, which drives the drive tooth plate 7 to move, so that the cleaning rod 8 slides on the display screen of the laser rangefinder body 1 to clean the display screen and facilitate subsequent observation of the display screen by the staff.

[0030] The guide plate 9 is fixedly connected to the inside of the protective housing 2. The cleaning and protection mechanism also includes a protective plate 10 fixedly connected to the lower surface of the guide plate 9. The protective plate 10 corresponds to the laser rangefinder body 1. When the laser rangefinder body 1 is not in use, the protective housing 2 and the protective cover 4 protect the laser rangefinder body 1, and make the cleaning rod 8 and the protective plate 10 fit in close contact with the laser rangefinder body 1, thereby making the laser rangefinder body 1 safer when not in use.

[0031] The adjustment mechanism includes a connecting block 12 rotatably connected to the lower surface of the laser rangefinder body 1 via a rotating shaft. A movable plate 13 is fixedly connected to the surface of the connecting block 12. The movable plate 13 is slidably connected to the inside of the protective housing 2. A retaining spring 14 is fixedly connected in a rectangular array on the lower surface of the movable plate 13. The retaining spring 14 is fixedly connected to the inner bottom wall of the protective housing 2. When the protective cover 4 is separated from the protective housing 2, the elastic force of the retaining spring 14 causes the movable plate 13 to move the laser rangefinder body 1, so that the laser rangefinder body 1 moves out of the protective housing 2.

[0032] A level 17 is provided on one side of the upper surface of the laser rangefinder body 1. The adjustment mechanism also includes an adjustment block 15 rotatably connected to one side of the laser rangefinder body 1 via a pin. An adjustment screw 16 is threadedly connected to the inside of the adjustment block 15. According to the setting of the level 17, rotating the adjustment screw 16 causes the adjustment block 15 to move. Thus, through the setting of the pin, one side of the laser rangefinder body 1 rotates around the connection point between the connecting block 12 and the rotating shaft, adjusting the position of the laser rangefinder body 1 so that the laser rangefinder body 1 remains horizontal during use. The adjustment screw 16 is rotatably connected to the moving plate 13 via a bearing seat.

[0033] Specifically, when this high-precision engineering measurement laser rangefinder is in use: when the laser rangefinder body 1 is not in use, the protective housing 2 and the protective cover 4 protect the laser rangefinder body 1, and the cleaning rod 8 and the protective plate 10 are in contact with the laser rangefinder body 1, thus making the laser rangefinder body 1 safer when not in use. When the laser rangefinder body 1 is in use, the protective cover 4 is slid so that it slides on the upper surface of the protective housing 2, which drives the linkage tooth plate 5 to move, thereby causing the drive gear 6 to rotate, which drives the drive tooth plate 7 to move, so that the cleaning rod 8 slides on the display screen of the laser rangefinder body 1, thereby cleaning the display screen and making it easier for subsequent staff to observe the display screen. When the protective cover 4 is separated from the protective housing 2, the elastic force of the spring 14 causes the moving plate 13 to move the laser rangefinder body 1, so that the laser rangefinder body 1 moves out of the protective housing 2.

[0034] According to the setting of the level 17, the adjusting screw 16 is rotated to move the adjusting block 15. This, through the setting of the pin, causes one side of the laser rangefinder body 1 to rotate around the connection point between the connecting block 12 and the rotating shaft, thereby adjusting the position of the laser rangefinder body 1. This ensures that the laser rangefinder body 1 remains horizontal during use, making the data measured by the laser rangefinder body 1 more accurate.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision laser rangefinder for engineering surveying, comprising a laser rangefinder body (1), characterized in that: An adjustment mechanism is installed on the lower surface of the laser rangefinder body (1), and a cleaning and protection mechanism is installed on the surface of the laser rangefinder body (1). The cleaning and protection mechanism includes a protective housing (2) sleeved on the surface of the laser rangefinder body (1). A limiting rod (3) is fixedly connected to one side of the protective housing (2). A protective cover (4) is slidably sleeved on the surface of the limiting rod (3). A linkage toothed plate (5) is fixedly connected to one side of the lower surface of the protective cover (4). A drive gear (6) is meshed on the surface of the linkage toothed plate (5). The drive gear (6) is rotatably connected to the protective housing (2) through a rotating shaft. A drive toothed plate (7) is meshed on the surface of the drive gear (6). A cleaning rod (8) is fixedly connected to the surface of the drive toothed plate (7). A guide plate (9) is slidably sleeved on the surface of the cleaning rod (8). The guide plate (9) is fixedly connected to the inside of the protective housing (2).

2. The high-precision laser rangefinder for engineering surveying according to claim 1, characterized in that: The cleaning and protection mechanism also includes a protective plate (10) fixedly connected to the lower surface of the guide plate (9). The protective plate (10) corresponds to the main body (1) of the laser rangefinder, and the cleaning rod (8) is attached to the display screen on the surface of the main body (1) of the laser rangefinder.

3. The high-precision laser rangefinder for engineering surveying according to claim 1, characterized in that: The adjustment mechanism includes a connecting block (12) rotatably connected to the lower surface of the laser rangefinder body (1) via a rotating shaft. A movable plate (13) is fixedly connected to the surface of the connecting block (12). A retaining spring (14) is fixedly connected to the lower surface of the movable plate (13) in a rectangular array. The retaining spring (14) is fixedly connected to the inner bottom wall of the protective shell (2).

4. A high-precision laser rangefinder for engineering surveying according to claim 3, characterized in that: The adjustment mechanism also includes an adjustment block (15) rotatably connected to one side of the laser rangefinder body (1) via a pin shaft. The adjustment block (15) is internally threaded with an adjustment screw (16), which is rotatably connected to the moving plate (13) via a bearing seat.

5. A high-precision laser rangefinder for engineering surveying according to claim 1, characterized in that: A magnet (11) is fixedly connected to the lower surface of the protective cover (4). The magnet (11) corresponds to the protective shell (2). A level (17) is provided on one side of the upper surface of the laser rangefinder body (1).

6. A high-precision laser rangefinder for engineering surveying according to claim 3, characterized in that: The main body (1) of the laser rangefinder is slidably connected to the inside of the protective housing (2). The surface of the protective cover (4) is provided with an observation window. The protective cover (4) corresponds to the protective housing (2). The moving plate (13) is slidably connected to the inside of the protective housing (2).

Images